{
  "$type": "site.standard.document",
  "description": "A main bearing metal (41) has a main bearing metal planar portion (42), a main bearing metal oil groove portion (44) in which a main-bearing-metal-side oil groove (43) extending in a circumferential direction is formed along the entirety of an inner peripheral surface, a first oil hole (48), one…",
  "path": "/patents/925122",
  "publishedAt": "2017-06-21T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01M1/06",
    "NISSAN MOTOR [JP]"
  ],
  "textContent": "A main bearing metal (41) has a main bearing metal planar portion (42), a main bearing metal oil groove portion (44) in which a main-bearing-metal-side oil groove (43) extending in a circumferential direction is formed along the entirety of an inner peripheral surface, a first oil hole (48), one end thereof opening at the main-bearing-metal-side oil groove (43) and the other end thereof communicating with the lower end of an in-block oil passage (27) that extends from the oil gallery of a cylinder block to a crankshaft bearing part (12), and a second oil hole (49), one end thereof opening at the main-bearing-metal-side oil groove (43) and the other end thereof communicating with the upper end of an in-cap oil passage (28) that extends from the crankshaft bearing part (12) to a control shaft bearing part (17).",
  "title": "BEARING STRUCTURE"
}